The Sturgeon River is a river that springs near Lady Evelyn-Smoothwater Provincial Park in the Timiskaming District in Ontario, Canada. It flows 230 kilometres (140 mi) in a mostly south-easterly direction through Sudbury and Nipissing Districts before it empties into Lake Nipissing on the north shore. The town of Sturgeon Falls is located on the river about 3 kilometres (1.9 mi) north of its mouth.